Background:
North Yemen became independent of the Ottoman Empire in 1918. The British, who had set up a protectorate area around the southern port of Aden in the 19th century, withdrew in 1967 from what became South Yemen. Three years later, the southern government adopted a Marxist orientation. The massive exodus of hundreds of thousands of Yemenis from the south to the north contributed to two decades of hostility between the states. The two countries were formally unified as the Republic of Yemen in 1990. A southern secessionist movement in 1994 was quickly subdued. In 2000, Saudi Arabia and Yemen agreed to a delimitation of their border.

NOTE: The information regarding Yemen on this page is re-published from the 2003 World Fact Book of the United States Central Intelligence Agency. No claims are made regarding the accuracy of Guinea Geography 2003 information contained here. All suggestions for corrections of any errors about Yemen Introduction 2003 should be addressed to the CIA.